A woman holds a banner that shows Serbian President Aleksandar Vucic, reading: "You have blood on your hands!" and stopping traffic, standing in silence to commemorate the 15 victims of a railway roof collapse five weeks ago, demanding accountability for the tragedy in Belgrade, Serbia, Friday, Dec. 6, 2024. (AP Photo/Darko Vojinovic)

People stopping traffic stand in silence to commemorate the 15 victims of a railway roof collapse six weeks ago, demand accountability for the tragedy, in Belgrade, Serbia, Friday, Dec. 13, 2024. (AP Photo/Darko Vojinovic)